Original Equipment Manufacturers

A

The 5ESS Switch is a Class 5 telephone electronic switching system originally developed by Western Electric.Read More

AAA

Authentication, Authorization and Accounting

In computer security, AAA commonly stands for authentication, authorization and accounting.Read More

ADSL

Asymmetric Digital Subscriber Line

Asymmetric Digital Subscriber Line (ADSL) is a type of digital subscriber line technology.Read More

AEC

Acoustic Echo Cancellation

The term echo cancellation is used in telephony to describe the process of removing echo from a voice communication in order to improve voice quality on a telephone call.Read More

AIN

Advanced Intelligent Network

The Intelligent Network (IN), is the standard network architecture specified in the ITU-T Q.1200 series recommendations.Read More

API

Applications Programming Interface

An application programming interface (API) is a specification intended to be used as an interface by software components to communicate with each other.Read More

ARPU

Average Revenue Per User

Average revenue per user usually abbreviated to ARPU is a measure used primarily by consumer communications and networking companieRead More

ASIC

Application-specific integrated circuit (used in core switching)

An application-specific integrated circuit, or ASIC, is an integrated circuit (IC) customized for a particular use, rather than intended for general-purpose use.Read More

ATCA

Advanced Telecommunications Computing Architecture

An AdvancedTCA boardis 280 mm deep and 322 mm high. The boards have a metal front panel and a metal cover on the bottom of the printed circuit board to limit electromagnetic interference and to limit the spread of fire.Read More

ATM

Asynchronous Transfer Mode

Asynchronous Transfer Mode (ATM) is, according to the ATM Forum, "a telecommunications concept defined by ANSI and ITU (formerly CCITT) standards for carriage of a complete range of user traffic.Read More

AUC

Authentication Center

The authentication centre (AuC) is a function to authenticate each SIM card that attempts to connect to the GSM core network.Read More

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